Sometime last year I snagged a pair of beat-up d7000's and I loved the way they sounded but the condition was a little bit much for me. After running around with the x00 line a little and even th900's I re-bought another d7000 that was "pristine". Well pristine was more like "nice shape but with disintegrating headband and disintegrating lips on the ear pads from being stuffed and stretched with cotton.
I bought a new headband pad from full compass; it was not cheap around $45 shipped. If you attempt this job you need to be extremely surgical in removing and re-installing the screws. Loc-tite is recommended and always always always counter-screw to line the bolts up before clockwise screw. The parts are soft as hell aluminum and the bolts are steel with not much meat; this is a recipe for disaster.
Then i went looking for pads, the closest we can get from Fostex is the TH610 pads (About $80). They are not as padded as the original and the ear opening of OG is still larger than the th-610.
I tried Dekoni x00 hybrid elite and they boost too much mid-bass and treble. I bet the midrange also suffered a bit too. They did sound really nice with vinyl listening though which for my rig needed the extra V shape.
I ordered these wang_yifei China pads a month ago and they finally arrived today. These are it chief. The padding is just as thick as OG, the ear opening is larger than X00 style pads but not quite as big as the OG. An improvement over the 610 pads due to less apparent treble bump. The China pads are way more neutral and don't seem to sacrifice the mids. I will admit there is still some treble business going on but it's far less than any previously mentioned pads including the falling apart OG's. Best of all the build quality is better than I expected. Hopefully they last!
Get 'em while you still can! $35 shipped and a SOLID 1 month ship time (thanks ebay "speed-pak")
I don't recommend buying TH900 pads but I would be curious to know how they fare on the old d7k. Largest ear opening, very soft and comfortable.